Sure! To fully assist you, I'll need to know the specific questions you're referring to. In the context of a sinking fund with 3.0% interest compounded semiannually for five years, I can help with questions related to the amount that needs to be invested periodically, the future value, or the periodic payment, etc.

Could you clarify which particular aspects you'd like me to address, such as:

1. How much the company needs to invest periodically (regular payments).
2. The future value of the sinking fund after five years.
3. The total amount deposited over the five years.
4. The interest earned after the five years.
5. Any other specific questions you have in mind?

Let me know, and I'll provide you with the calculations and detailed explanations!